Alright, let's work through 73477861 times 90021880 step by step
73477861 × 90021880 = 90021880 × (73477861)
+ 90021880 × 1 that results in 90021880
+ 90021880 × 60 giving us 5401312800
+ 90021880 × 800 what gives us 72017504000
+ 90021880 × 7000 giving us 630153160000
+ 90021880 × 70000 producing 6301531600000
+ 90021880 × 400000 resulting in 36008752000000
+ 90021880 × 3000000 producing 270065640000000
+ 90021880 × 70000000 that equals 6301531600000000

= 6614615185598680
